fine ·phrase (IDIOM)
Definition: a very small difference between two things that may seem different Level: C1
勇气和愚蠢之间只有一线之隔。
There's ___a ___fine ___line between courage and foolishness.
我花了六个月才意识到，责骂和心理虐待之间只有一线之隔。
It took me 6 months to realize that there is ___a ___fine ___line between telling off and psychological abuse.
在艺术中，灵感和模仿之间往往只有一线之隔。
In art, there's often ___a ___fine ___line between inspiration and imitation.